ALL meanings of acritarch
ac·ri·tarch
A a - noun acritarch a type of small fossil 3
- noun acritarch any of various microfossils, of unknown biological affinities, having a central cavity enclosed by a wall of chiefly organic composition. 1
- noun acritarch (paleontology, palynology) Any small, non-acid soluble (i.e. non-carbonate, non-siliceous) organic fossil that cannot be classified. 0